package com.hxiaoyi.cloud;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.hystrix.EnableHystrix;
import org.springframework.context.annotation.Bean;

/**
 * PaymentHystrixMain8001
 * @author 黄敬意
 * @date 2022-02-09 21:21
 **/
@SpringBootApplication
@EnableEurekaClient
@EnableCircuitBreaker
@EnableHystrix
public class PaymentHystrixMain8001 {
    public static void main(String[] args) {
        SpringApplication.run(PaymentHystrixMain8001.class, args);
        System.out.println("具备Hystrix的服务8001启动成功");
    }

    /**
     * 此配置是为了服务监控的，与服务容错本身无关，是spring cloud升级后的坑
     * ServletRegistrationBean是因为springboot的默认路径不是"/hystrix.stream"
     * 就需要自己在自己的项目里配置下面的servlet就可以了
     * @return ServletRegistrationBean
     */
    @Bean
    public ServletRegistrationBean getServlet(){
        HystrixMetricsStreamServlet streamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean registrationBean = new ServletRegistrationBean(streamServlet);
        registrationBean.setLoadOnStartup(1);
        registrationBean.addUrlMappings("/hystrix.stream");
        registrationBean.setName("HystrixMetricsStreamServlet");
        return registrationBean;
    }
}
